淡紫拟青霉几丁质酶是一种对植物线虫有生防活性的酶。综合报导了国内外学者对这类酶的主要性质、研究背景、生防作用等的研究结果。根据该酶的特点和作用 ,提出淡紫拟青霉几丁质酶为线虫防治、线虫病原真菌研究及资源调查、基因工程应用、植物病害防治等领域开辟了广阔的应用前景 Paecilomyces lilacin chitinase is a biologically active enzyme on plant nematodes. Comprehensive coverage of the domestic and foreign scholars on the nature of this type of enzyme, research background, biocontrol effect and other research results. According to the characteristics and the function of the enzyme, it was proposed that Paecilomyces lilacinus chitinase opened up broad application prospects for the prevention and control of nematodes, the research on nematode pathogenic fungi, the investigation of resources, the application of genetic engineering and the prevention and treatment of plant diseases